20010113130000 has 400 divisors, whose sum is σ = 73945305927680. Its totient is φ = 4566176064000.

The previous prime is 20010113129989. The next prime is 20010113130001. The reversal of 20010113130000 is 3131101002.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20010113130001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 127391511 + ... + 127548489.

Almost surely, 2^{20010113130000} is an apocalyptic number.

20010113130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010113130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36972652963840).

20010113130000 is an abundant number, since it is smaller than the sum of its proper divisors (53935192797680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010113130000 is a wasteful number, since it uses less digits than its factorization.

20010113130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157624 (or 157603 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20010113130000 its reverse (3131101002), we get a palindrome (20013244231002).

The spelling of 20010113130000 in words is "twenty trillion, ten billion, one hundred thirteen million, one hundred thirty thousand".